Main Engine 4-Stroke · Main Engines (4-Stroke)
The HiMSEN 5H21/32 is a 5‑cylinder, medium‑speed (720–1000 rpm) four‑stroke marine diesel engine delivering up to 1 100 kW, featuring common‑rail fuel injection and the ability to run on HFO or MGO.
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| oil_change | 400-600 hours |
|---|---|
| fuel_filter_change | 200-400 hours |
| air_filter_change | 100-200 hours |
| coolant_change | 1000-2000 hours |
| valve_clearance_adjustment | 1000-2000 hours |
| cylinder_liner | 0.5-1.0 mm wear limit |
|---|---|
| piston_ring | 0.5-1.0 mm wear limit |
| exhaust_valve | 0.1-0.5 mm wear limit |
| crankshaft_bearing | 0.1-0.5 mm wear limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyor typically checks engine condition, performance, and maintenance records to ensure compliance with classification society rules and regulations
Estimated lifetime: 20000-30000 hours
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